At the time of development, the Kikka was not equipped with a fixed machine gun, but was planned to carry a single 500 kg or 800 kg bomb under the fuselage, and to launch from land to conduct horizontal bombing and shallow dive bombing against enemy ships. According to one theory, skip bombing using a bomb called "Type 3 25-8 bomb or tentatively designated Type 4 50-8 bomb" was also planned (described in the draft request for the prototype Kikka project).
This aircraft is a attack aircraft intended for anti-ship attacks by bombing. It was not a aircraft designed exclusively for ramming attack from the beginning, like Ohka, but considering the name "flower(花)" that represents a ramming attack aircraft, and considering the war situation at the time, there is an opinion that there was no use other than to use it as a ramming attack aircraft.
In addition, the military wanted to preserve reciprocating engines, which require expensive and high production technology, and use them for air defense interceptors rather than using them for ramming attack aircraft, and if the technical aspects were overcome and mass production was achieved, jet engines, which were cheaper than reciprocating engines and easier to mass-produce, were considered to be the most suitable engines for ramming attack aircraft.
However, Susumu Watanabe, who was in charge of the engine rigging of the Kikka said, "The Kikka was not a ramming attack aircraft, but a attack aircraft that was premised on returning from the beginning," suggesting that the Kikka was not a ramming attack aircraft.